def disconnect(self):
'''Close the interface to the NSP (or nPlay).'''
if not self._init:
raise ValueError("Please open the interface to Central/nPlay first.")
print 'calling cbpy.close in cerelink.disconnect()'
result = cbpy.close()
print 'result:', result
print ''
self._init = False
conn_params = cbpy.defaultConParams()
cbpy.open(parameter=conn_params)
print("Creating LSL Outlet")
outlet_info = pylsl.StreamInfo(name=STREAM_NAME, type=TYPE, channel_count=len(CHANNEL_NAMES),
nominal_srate=pylsl.IRREGULAR_RATE, channel_format=CHAN_FORMAT, source_id=SOURCE_ID)
outlet_info.desc().append_child_value("manufacturer", "Blackrock")
channels = outlet_info.desc().append_child("channels")
for c in CHANNEL_NAMES:
channels.append_child("channel").append_child_value("label", c)
outlet = pylsl.StreamOutlet(outlet_info)
print("Sending timestamps...")
try:
start_time = pylsl.local_clock()
n_samples = 0
target_isi = 1 / SYNC_RATE
while True:
while (pylsl.local_clock() - start_time) < (n_samples * target_isi):
time.sleep(0.1/SYNC_RATE)
cbpy.trial_config(reset=True, noevent=True, nocontinuous=True, nocomment=True)
res, ts = cbpy.time()
lsl_stamp = pylsl.local_clock()
outlet.push_sample([int(ts)], timestamp=lsl_stamp)
n_samples += 1
except KeyboardInterrupt:
print("Terminating...")
del outlet
cbpy.close()
def stop(self):
"""Tell the device to stop streaming data."""
self.running_ = False
result = cbpy.close()
err_msg = "Connection to NSP/Central not closed successfully."
self._check_result(result, ConnectionError, err_msg)
data[inds, 2] = unit
idx += len(unit_ts)
# print 'trial_event result:', trial_event_result
print ''
print 'trial data:\n'
if data.shape[0] > 0:
data = data[np.argsort(data[:,0]), :]
headers = ['timestamp', 'channel', 'unit']
print tabulate.tabulate(data, headers=headers)
print ''
# print 'time result:', time_result
print 'NSP time:', int(nsp_time)
print ''
last_nsp_time = nsp_time
t_elapsed = time.time() - t_start
if t_elapsed < loop_time:
time.sleep(loop_time - t_elapsed)
# print 't_elapsed: %3.3f secs, loop time: %3.3f secs' % (t_elapsed, time.time()-t_start)
result = cbpy.close()
# print 'result:', result
# print ''
print '\nitr %d of %d:' % (itr + 1, n_itrs)
# print 'calling cbpy.trial_event()'
# result, trial = cbpy.trial_event(reset=True)
# result, nsp_time = cbpy.time()
print 'calling cbpy.trial_continuous()'
result, trial = cbpy.trial_continuous(reset=True)
result, nsp_time = cbpy.time()
for i in range(len(trial)):
print '# samples:', len(trial[i][1])
print 'result:', result
print 'trial:', trial
print ''
# print 'calling cbpy.time()'
result, nsp_time = cbpy.time()
print 'result:', result
print 'time:', nsp_time
print ''
t_elapsed = time.time() - t_start
if t_elapsed < loop_time:
time.sleep(loop_time - t_elapsed)
print 't_elapsed: %3.3f secs, loop time: %3.3f secs' % (
t_elapsed, time.time() - t_start)
result = cbpy.close()
print 'result:', result
print ''
def disconnect(self):
# Close the interface to the NSP (or nPlay). #
cbpy.close()
self.is_connected = False
def __del__(self):
res = cbpy.close(instance=0)
